Put together your spice mixture and set aside.
Put 1/2 the oil in your skillet and turn onto high heat.
Season your meat with the salt and pepper.
Brown the outside of your beef in batches, adding more oil when needed. Do not cook your meat all the way through, you just want a crust on the outside about 2 minutes on each side.
Throw the meat into your 6 qt or larger slow cooker.
Add the onion, celery to the skillet and saute until they begin to soften.
Stir in the crushed tomatoes, beer and tomato paste and simmer for 3 minutes
Add the garlic, jalapenos and spice mixture to the skillet, stir and simmer for 1 minute.
Pour this over the beef in your slow cooker and cook on low for 6-8 hours until the beef is tender.
Stir in the parsley and cilantro leaves and serve.
Stir in the masa harina and chocolate chips and stir until they are melted.